Advantages and disadvantages of synthetic methods of 3- methyldiphenylamine

1. Advantages 1: This method has the advantages of simple operation, mild reaction conditions, short reaction time and high yield.

2. Advantages 2: easily available raw materials and low cost.

3. Advantage 3: This method is suitable for industrial production and can produce 3- methyldiphenylamine on a large scale.

4. Disadvantages 1: The formaldehyde used in this method is toxic and harmful to human body and environment.

5. Disadvantage 2: This method needs acidic catalyst, and the selection and use conditions of catalyst have certain influence on the reaction yield and product purity.

6. Disadvantage 3: The waste water and waste gas generated by this method needs to be treated, otherwise it will pollute the environment.